21345800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{193}}^1$

素因数の和:295

約数の個数: 96

約数和(自身を含む): 57734400

約数和(自身を除く): 36388600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 79, 100, 140, 158, 175, 193, 200, 280, 316, 350, 386, 395, 553, 632, 700, 772, 790, 965, 1106, 1351, 1400, 1544, 1580, 1930, 1975, 2212, 2702, 2765, 3160, 3860, 3950, 4424, 4825, 5404, 5530, 6755, 7720, 7900, 9650, 10808, 11060, 13510, 13825, 15247, 15800, 19300, 22120, 27020, 27650, 30494, 33775, 38600, 54040, 55300, 60988, 67550, 76235, 106729, 110600, 121976, 135100, 152470, 213458, 270200, 304940, 381175, 426916, 533645, 609880, 762350, 853832, 1067290, 1524700, 2134580, 2668225, 3049400, 4269160, 5336450, 10672900, 21345800]

約数ペア:

[(1, 21345800), (2, 10672900), (4, 5336450), (5, 4269160), (7, 3049400), (8, 2668225), (10, 2134580), (14, 1524700), (20, 1067290), (25, 853832), (28, 762350), (35, 609880), (40, 533645), (50, 426916), (56, 381175), (70, 304940), (79, 270200), (100, 213458), (140, 152470), (158, 135100), (175, 121976), (193, 110600), (200, 106729), (280, 76235), (316, 67550), (350, 60988), (386, 55300), (395, 54040), (553, 38600), (632, 33775), (700, 30494), (772, 27650), (790, 27020), (965, 22120), (1106, 19300), (1351, 15800), (1400, 15247), (1544, 13825), (1580, 13510), (1930, 11060), (1975, 10808), (2212, 9650), (2702, 7900), (2765, 7720), (3160, 6755), (3860, 5530), (3950, 5404), (4424, 4825)]